6 main causes of sciatica
Several lumbar spine (lower back) ailments can cause sciatica. Sciatica is frequently described as moderate to severe pain in the right or left leg. Occasionally doctors call a radiculopathy that is sciatica. It’s called a cervical radiculopathy, if the nerve trouble is in the neck. But since the low back changes, it’s called a lumbar.
Five sets of matched nerve roots in the lumbar spinal column join to create the sciatic nerve. Beginning at the rear of the pelvis (sacrum), the sciatic nerve runs from the back, under the buttock, and down through the hip region into each leg. Nerve roots aren’t “solitary” structures but are part of the body’s whole nervous system effective at transmitting pain and sense to other parts of the body.
Several spinal ailments can cause sciatica or lumbar radiculopathy and spinal nerve compression:
- bulging or herniated disc
- lumbar spinal stenosis
- piriformis syndrome
- spinal tumors
Common Sciatica Cause #1: Herniated Disc or Lumbar Bulging Disk
A bulging disk is also called a contained disc illness. What this means is the gel-like center (nucleus pulposus) stays “included” within the tire-like outer wall (annulus fibrosus) of the disk.
It’s called a “non-controlled” disk illness. Whether a disk herniates or bulges, disk stuff compress fragile nerve tissue and cause sciatica and can press against an adjoining nerve root.
The results of a herniated disc are not better. In both instances, nerve compression and irritation cause pain and inflammation, tingling, frequently resulting in extremity numbness, and muscle weakness.
Common Sciatica Cause #2: Lumbar Spinal Stenosis
Spinal stenosis is a nerve compression illness most commonly impacting elderly adults. Leg pain much like sciatica may happen as an effect of lumbar spinal stenosis. The pain is typically positional, frequently brought on by actions like walking or standing and relieved by sitting down.
Spinal nerve roots branch out through passageways from the spinal cord called neural foramina constituted of ligaments and bone. Between each set of vertebral bodies, situated on the right and left sides, is a foramen.
Nerve roots extend out beyond the spinal column to innervate other parts of the body and pass through these openings. The term foraminal stenosis is used when these passageways become narrow or clogged causing nerve compression.
Common Sciatica Cause #3: Spondylolisthesis
Spondylolisthesis is a disorder that most commonly affects the lumbar spine. One vertebra slipping forwards over an adjacent vertebra characterizes it. When a vertebra slips and is displaced, spinal nerve root compression generally causes sciatic leg pain and happens.
Spondylolisthesis is categorized as developmental (located at birth, grows during youth) or obtained from spinal degeneration, injury or physical pressure (eg, lifting weights).
Common Sciatica Cause #4: Injury
Sciatica can result from direct nerve compression brought on by outside forces to the lumbar or sacral spinal nerve roots. Examples include motor vehicle accidents. The impact may injure the nerves or, sometimes, the nerves may compress.
Common Sciatica Cause #5: Piriformis syndrome
Piriformis syndrome is named for the piriformis muscle and the pain caused when the sciatic nerve is irritated by the muscle. The piriformis muscle and the thighbone is situated in the lower part of the spinal column, connect, and assistance in hip rotation. Piriformis syndrome grows when muscle spasms grow in the piriformis muscle thus compressing the sciatic nerve. It may be hard to diagnose and treat because of the deficiency of x ray or magnetic resonance imaging (MRI) findings.
Common Sciatica Cause #6: Spinal Tumours
Luckily, spinal tumors are uncommon. But when a spinal tumor grows in the lumbar area, there’s a danger for sciatica to grow as an effect of nerve compression.